public DynamicScheduler(ReadOnlySpan <TItem> scheduleItems)
{
m_executeItemAction = ExecuteScheduledItem;
var items = new ItemInfo[scheduleItems.Length];
for (int i = 0; i < items.Length; i++)
{
items[i] = new ItemInfo()
{
Item = scheduleItems[i]
}
}
;
// sort dynamically
var ok = DynamicOrdering.Perform <ItemInfo>(items, out _);
if (!ok)
{
CoreException.Throw("Failed to sort dynamically");
}
m_concurrencyPreventionMatrix = new SymmetricMatrixBool(scheduleItems.Length);
m_running = new FastList <ItemInfo>(16);
// set up items (determine nods, concurrency etc)
var nods = new FastList <int>(32);
for (int aIdx = 0; aIdx < items.Length; aIdx++)
{
var a = items[aIdx];
a.Index = aIdx; // set up index
ref var aInfo = ref items[aIdx];
aInfo.EmitNodsIndex = nods.Count;
for (int bIdx = 0; bIdx < items.Length; bIdx++)
{
if (aIdx == bIdx)
{
continue;
}
// determine is aIdx nods to bIdx
var b = items[bIdx];
var aOrder = a.Item.ScheduleAgainst(b.Item);
var bOrder = b.Item.ScheduleAgainst(a.Item);
aOrder = ScheduleOrderUtil.ResolveOrder(aOrder, bOrder, out var conflict);
if (aOrder == ScheduleOrder.RunBefore)
{
ref var bInfo = ref items[bIdx];
bInfo.NodsRequired++;
nods.Add(bIdx);
}
if (aOrder != ScheduleOrder.AnyOrderConcurrent)
{
m_concurrencyPreventionMatrix[aIdx, bIdx] = true;
}
}
aInfo.EmitNodsCount = nods.Count - aInfo.EmitNodsIndex;
}